React Native Android Duplicate file error when generating apk

Question

When I am trying to generate android apk by using ./gradlew installRelease, I get this error in console:

~/React-Native/mockingbird/android/app/         


        

Answer 1

For me it work to remove the folder: android/build and run ./gradlew assembleRelease again.

Answer 2

In order to get my build working for React Native 0.57.5, I used Mapsy's answer with a minor enhancement. I needed to be able to build for multiple flavors and generally I try to avoid hardcoding things. When looking through my react.gradle file, I found it had the following variable defined:

def resourcesDir = file("$buildDir/generated/res/react/${targetPath}")

So instead of hardcoding the build type/flavor in the path like this:

File originalDir = file("$buildDir/generated/res/react/release/drawable-${resSuffix}");

I instead used the resourcesDir variable to set the originalDir path like this:

File originalDir = file("${resourcesDir}/drawable-${resSuffix}");

As a result, my doLast looks like this:

doLast {
            def moveFunc = { resSuffix ->
                File originalDir = file("${resourcesDir}/drawable-${resSuffix}");
                if (originalDir.exists()) {
                    File destDir = file("$buildDir/../src/main/res/drawable-${resSuffix}");
                    ant.move(file: originalDir, tofile: destDir);
                }
            }
            moveFunc.curry("ldpi").call()
            moveFunc.curry("mdpi").call()
            moveFunc.curry("hdpi").call()
            moveFunc.curry("xhdpi").call()
            moveFunc.curry("xxhdpi").call()
            moveFunc.curry("xxxhdpi").call()
        }